The Fujica STX-1 was introduced in the late 1979 and produced for only a few short years. It's a totally manual camera but does have a built in meter, which still seems to be working fairly well. The odd thing about this camera is that it has a top shutter speed of 1/750, most cameras that I know of typically had top shutter speeds of 1/500 or 1/1000, so this one is a bit of an odd duck. Really it has everything I like to see in a SLR. Simple design, operates without batteries (except for the light meter), and solidly built.
Fujica SLR's really aren't all that well known, and I couldn't find all that much information on them. Based on what I gathered from miscellaneous sources of questionable accuracy on the internet, it sounds like Fuji shot themselves in the foot with the lens mount. The X-mount lenses used by this camera were introduced in 1980 which replaced the m42 screw-mount found on older Fujica cameras, which would have angered anyone who was already invested in Fujica system. Then Fuji apparently discontinued the X-mount only five years later. So I can see why these cameras really aren't that well remembered today.
Fujica STX1SLRclassic camera